Based on Coulomb's law

Asked by  | 18th Apr, 2008, 12:16: PM

Expert Answer:

electron stops due to repulsion as  it reaches the plate, that is its kinetic  energy will convert to its potential energy. and  its kinetic energy is  100eV

that is 1001.610-19=1.610-17 joules.

as electron reached near to the  plate then its kinetic energy will fully convert into the  potential energy which is


Here the area of the plate is not given only surface charge density is given.

Answered by  | 18th Apr, 2008, 01:06: PM

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